$NetBSD: patch-aa,v 1.1.1.1 2001/06/17 19:13:52 drochner Exp $

--- WaveTrack.cpp.orig	Fri Jun 15 13:36:03 2001
+++ WaveTrack.cpp	Fri Jun 15 13:37:40 2001
@@ -848,7 +848,9 @@
   	  numSamples = 0;
   	  block->Clear();
 
-  	  blockMutex->Unlock();	  
+#if wxUSE_THREADS
+  	  blockMutex->Unlock();
+#endif
 
   	  wxString msg;
   	  msg.Printf("The file named \"%s\" is missing from the project.",
@@ -861,8 +863,10 @@
   	block->Add(w);
   }
 
+#if wxUSE_THREADS
   blockMutex->Unlock();
-  
+#endif
+
   return true;
 
 readWaveTrackError: